Railway-car-door construction



jam. 6, 1931. A. CAMPBELL 1,787,855

RAILWAY CAR DOOR'CQNSTRUCTLQN Original Filed May 18 1925 jzaefliarArgyle/$2 266 Jim w AZZay/zqy:

Patented Jan. 6,1931

UNITED STATES ARGYLE CAMPBELL, or crrrcneo, ILLINoIs, ii sfsreivoii,enmity EQUIPMENT COMPANY, or CHICAGO, ILLINo-Is, A conronn'rron orILLINOIS nAILwAY-cnR-nooR consrnvcrroiv Original application'filed May18, 1925, Serial No. 31,144; Divided .and this application filed. March5,

' ments of railway car doors.

An object of the invention is to construct the wall elements of railwaycar doors in such a manner that portions thereof will be rigidified atthe point of greatest strain by meaningless corrugations of greatstrength and other portions of the said wall elements where the strainis not so great will be rigidi'fied by the incorporation of embossmentsdefining descriptive characters, indicia, symbols or designatingmarkings whereby the car may be readily identified and an advertisingvalue derived from the use of suchembossments.

Other objects of the invention will more clearly appear from thedescription hereinafter following. In the drawings forming a part ofthis specification, Fig.1-is a side elevational View of the side door ofa railway box car embodying by improved car construction. Fig. 2 is asectional view taken on a line corresponding substantially to line'2-2of Fig. 1. Fig. 3 is an enlarged fragmentary horizontal section on line8-3 of Fig. 1.

Referring to the construction shown in Figs. 1 and 2, I have shown myimprovements as applied to the side door of a car, the framework of thedoor being indicated by vertical marginal members 110-110, upperhorizontal marginal members 111 and lower marginal member 112. The mainbody of the door ineludes lower and upper panels as indicated at G and Drespectively. Said lower panel C is secured to the vertical margins110-110'as indicated at 113 and to the lower horizontal margin 112 asindicated at 114; The body of the panel is rigidified by a'series ofhorizon tal corrugations 115 embossed in. the plate and which extendbetween the vertical members 110 110. The upper panel D is secured tothe respective vertical margins 110 as indicated at 116 and to the lowerpanel and to the upper horizontal marginal member 111 as indicated at117 and 118 respectively. Said panel D has embossed therein thedescriptive symbol 119 which is formed to resist bending of the plate onvarious cross-lines.

Serial The embodiment of my invention as illustrated herewith is atypical example of a. pre erred construction for the vertical wallelements of railway car doors and while I have shown the symbol in theupper portion of the panel, this arrangement may be modified in anysuitable manner. The disposition of the corrugations at the lowerportion of the panelling is a preferred arrangement inasmuch as thetendency to bulge is generally greater at the lower part of the car wallthan at the top thereof and the series of horizontally extendingcorrugations provide for great strength 1 preferred manner of carryingout my inventi on, the same is merely illustrative and I contemplate allchanges and modifications that come within the scope of the claimsappended hereto.

'This application is a division of my earlier application Serial No.31,144, filed. May 18,

1925, for railway car construction; this divisional application beingfor a car door per se, shown and described but not claimed specificallyin said earlier application.

' lVhat I claim is:

In a sliding car door, the combination with marginal reinforcing memberspresenting a framework including spaced vertical members having websextending substantially at right angles to thema'in plane of the doorand defining the depth of the door, said members having a. flangedefining substantially the outer plane of the door; of a sheet metalpanel disposed substantiallyin the inner plane of the door, said panelbeing formed with marginal flanges arrangedat right angles to the mainpart of the panel and secured to the Webs of the vertical marginalmembers thereby cooperating with the webs and outer flanges of thevertical members to form U-shaped margins; and a series of embossmentsformed in the central part of said panel, said embossments extendingoutward and terminating Within the space between said U-shaped marginalportions to reinforce the marginal flanges of said panel. I

In testimony whereof I aflix my signature.

ARGYLE CAMPBELL.

